We have developed a novel color patterning method for the fabrication of large format full‐color OLEDs. Laser Induced Thermal Imaging (LITI) is a laser addressed high resolution thermal patterning process with unique advantages such as excellent transfer film thickness uniformity, multilayer stack transfer ability, and scalability to large‐size mother glass. LITI patterning of small molecule materials produces OLEDs that are comparable in performance to conventional evaporated devices. Using the technology, we fabricated 2.2″ full color active matrix OLEDs.
We have developed a new color patterning method for the patterning of full color polymer light-emitting devices. Laser Induced Thermal Imaging (LITI) involves the imagewise exposure of a thermal transfer film with a scanning near infrared laser. During the process, light emitting polymer (LEP) is transferred from a thermal film to a circuitized substrate. Using the technology, we fabricated a 3.6" QVGA full color active matrix polymer light-emitting device (PLED).
We have developed Laser Induced Thermal Imaging (LITI) as a high resolution patterning method for OLED materials. The process is compatible with high throughput OLED manufacture on large format display glass. OLED devices fabricated using LITI technology have attained a level of performance that is acceptable for commercial applications.
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